A single stone diamond ring, the central round

Vintage Indian 18K yellow gold precious stones (ruby, sapphire and emerald) and diamond ornate ring. Central oval faceted-cut emerald approx: 5 x 3mm surrounded by eight round single-cut diamonds; app

An Art Deco single stone diamond ring, the round brilliant cut diamond in illusion setting, pierced and carved shoulders and plain shank marked '18ct' and 'plat' . L1/2, 2.7 grams

A single stone diamond ring, the round brilliant cut diamond, estimated weight 0.80ct, in a four claw Tiffany style setting, to plain shoulders and shank, size P, unhallmarked yellow metal tests to at

A single stone diamond ring, claw set round brilliant cut diamond, approximate diameter 4.8mm, estimated approximate weight 0.40ct, tapered chenier shoulders, size I½, unmarked, tested as 18ct

An impressive single stone diamond ring, the old round brilliant cut diamond, estimated weight 2.61cts, in a plain raised six claw setting of white precious metal, tests for 18ct white gold; ring size

A single stone diamond ring, featuring a claw set round brilliant cut diamond measuring 4.17mm in a yellow metal collet on a yellow metal band stamped '585', ring size K1/2, total weight of item 2.4g

A 1930S/1940S DIAMOND SINGLE STONE RINGThe central diamond weighing 1.58 carats in an eight cut diamond millegrained foliate surround, to pierced diamond set shoulders with scrolled foliate shankSize/

A DIAMOND SINGLE-STONE RING, the central brilliant-cut diamond measuring approx. 6.87x6.85 with brilliant-cut diamond shoulders within millegrain setting, mounted in 18K gold, ring size M

A 1.60ct diamond single stone ring, the round brilliant cut diamond, estimated weight 1.65cts in a four claw raised setting with plain tapered shank size M, in white on yellow metal stamped '18ct, Pla

Antique 14K yellow and white gold yellow stone and diamond ring, with one central 11 mm round faceted yellow stone flanked by a pair of old mine cut diamonds; approx: 0.60 carats total weight, color:

Single stone diamond ring, mounted in hallmarked 9ct yellow gold, central brilliant cut diamond, six claw set, with three small brilliant cut diamonds set to each shoulder, finger size N 1/4, gross we

A DIAMOND SINGLE-STONE RING, BY BULGARI The central brilliant-cut diamond weighing 0.79ct within a four-claw setting, to a gallery pavé-set with similarly-cut diamonds, mounted in platinum, signe

A 14k and 18k yellow and white gold ring set with a central round brilliant cut diamond, approximately 0.45ct, flanked by two round brilliant cut diamonds, marked 14K & 18k, size 61/4.

A gold single stone diamond ring, A gold single stone diamond ring, an old cut diamond, bezel set, to a round wire looped crossover surround, split shoulders and a plain double wire shank, tested as a

Gentleman's Three-Stone Diamond Ring 14k yellow gold, the ring mounted with a central round brilliant-cut diamond weighing approximately 1.00 carat, flanked by two round brilliant-cut diamonds weighi

A diamond single-stone ring set with a round brilliant-cut diamond, mounted in 18ct gold(Ring size: K)

A 1940s diamond single-stone ring claw-set with a round-cut diamond, each shoulder set with a tapered baguette-cut diamond, to a plain band(Ring size: M/N)

A diamond single-stone ring claw-set with a round brilliant-cut diamond, to a plain band, mounted in platinum; together with a baguette and round brilliant-cut diamond half-eternity ring, mounted in p

18K white gold diamond flower ring, central round brilliant diamond (5/8 ct), organic design, assorted size accent stones, marked size: 7.5 total weight: 10.2 grams Provenance: Property from the est

Platinum and Two Stone Diamond Ringin a geometric bypass design set with two central full cut round diamonds weighing approximately 1.12 total carats (I-J color, VS clarity), the two sides with single

A diamond single-stone ring claw-set with an old round-cut diamond, each shoulder set with eight-cut diamonds, to a plain band, unmarked; together with a diamond-set half-eternity ring, stamped PLAT(R

A diamond single-stone ring claw-set with an old round-cut diamond, to a plain band, stamped 18ct(Ring size: H)

Platinum Two Stone Diamond Ring. This eye catching platinum ring features two central old European cut round diamonds, the first of which is approximately 1.27 ct.*, VS2 in clarity, and K in color, an

A diamond single-stone ring claw-set with a single old round-cut diamond, to a plain band, stamped 585, with Austrian marks(Ring size: O)